» Articles » PMID: 21696575

Efficacy of Vitamin D3-fortified-yogurt Drink on Anthropometric, Metabolic, Inflammatory and Oxidative Stress Biomarkers According to Vitamin D Receptor Gene Polymorphisms in Type 2 Diabetic Patients: a Study Protocol for a Randomized Controlled...

Overview
Publisher Biomed Central
Specialty Endocrinology
Date 2011 Jun 24
PMID 21696575
Citations 8
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Development of type 2 diabetes mellitus (T2DM) is determined by the interactions of genetic and environmental factors. This study was designed to evaluate the possible role of VDR single nucleotide polymorphisms (SNPs) on different aspects of diabetic host response (anthropometric, metabolic, oxidative stress and inflammatory) to daily intake of vitamin D through fortified yogurt drink for 12 weeks.

Methods/design: This study comprises two parts: (i) a case-control study; and (ii) an intervention trial. In the first part, VDR polymorphisms (Taq1, FokI, Apa1, Bsm1, and Cdx2) are determined in 350 T2DM patients and 350 non-diabetic subjects. In the second part, the possible effects of daily intake of two servings of vitamin D3-fortified yogurt drink (FYD; 500 IU vitamin D/250 mL) on some selected metabolic (including insulin resistance), inflammatory and oxidative stress biomarkers in 135 T2DM patients are assessed. To relate the resulted changes in the biomarkers to vitamin D replenishment, another group of diabetic patients (n = 45) are also included in the study who receive 2 servings of plain yogurt drink (PYD) a day. The primary outcome is serum level of 25(OH) D, which it is expected to be elevated only in FYD group. Secondary outcomes include improvements in glycemic, metabolic, inflammatory and oxidative stress biomarkers in FYD group compared to PYD group. Three VDR FokI polymorphisms are determined only in FYD group followed by comparison of changes in the biomarkers among these genotypic variants.

Discussion: The present study, at least in part, elucidates the discrepancies in the results of different vitamin D-diabetes studies pertaining to the genetic variations of the population. If VDR polymorphisms are found to influence the response to our intervention, then knowing distribution of VDR polymorphisms in both diabetic and non-diabetic populations can give a picture of the proportion of the community in whom up to 1000 IU/d vitamin D may not be effective enough to improve insulin resistance and related morbidities. Therefore, they should ideally receive further nutritional support according to their genotype.

Trial Registration: ClinicalTrials.gov: NCT01236846.

Citing Articles

Fortification of Staple Foods for Household Use with Vitamin D: An Overview of Systematic Reviews.

Nyakundi P, Nemethne Kontar Z, Kovacs A, Jaromi L, Zand A, Lohner S Nutrients. 2023; 15(17).

PMID: 37686773 PMC: 10489979. DOI: 10.3390/nu15173742.


Attenuation of Oxidative Stress, Interleukin-6, High-Sensitivity C-Reactive Protein, Plasminogen Activator Inhibitor-1, and Fibrinogen with Oral Vitamin D Supplementation in Patients with T2DM having Vitamin D Deficiency.

Pasupuleti P, Suchitra M, Bitla A, Sachan A J Lab Physicians. 2022; 14(2):190-196.

PMID: 35982882 PMC: 9381323. DOI: 10.1055/s-0041-1742285.


Comparing the effectiveness of vitamin D plus iron vs vitamin D on depression scores in anemic females: Randomized triple-masked trial.

Vafa M, Azizi-Soleiman F, Kazemi S, Salehi M, Zaeri F, Abiri B Med J Islam Repub Iran. 2019; 33:64.

PMID: 31456988 PMC: 6708107. DOI: 10.34171/mjiri.33.64.


Consumption of vitamin D-fortified yogurt drink increased leptin and ghrelin levels but reduced leptin to ghrelin ratio in type 2 diabetes patients: a single blind randomized controlled trial.

Hajimohammadi M, Shab-Bidar S, Neyestani T Eur J Nutr. 2017; 56(6):2029-2036.

PMID: 28229278 DOI: 10.1007/s00394-017-1397-z.


The interactive effect of improvement of vitamin D status and VDR FokI variants on oxidative stress in type 2 diabetic subjects: a randomized controlled trial.

Shab-Bidar S, Neyestani T, Djazayery A Eur J Clin Nutr. 2014; 69(2):216-22.

PMID: 25424601 DOI: 10.1038/ejcn.2014.240.


References
1.
Hashemipour S, Larijani B, Adibi H, Javadi E, Sedaghat M, Pajouhi M . Vitamin D deficiency and causative factors in the population of Tehran. BMC Public Health. 2004; 4:38. PMC: 517720. DOI: 10.1186/1471-2458-4-38. View

2.
Bonjour J, Benoit V, Pourchaire O, Ferry M, Rousseau B, Souberbielle J . Inhibition of markers of bone resorption by consumption of vitamin D and calcium-fortified soft plain cheese by institutionalised elderly women. Br J Nutr. 2009; 102(7):962-6. DOI: 10.1017/S0007114509371743. View

3.
Clements M, Davies M, Hayes M, Hickey C, LUMB G, Mawer E . The role of 1,25-dihydroxyvitamin D in the mechanism of acquired vitamin D deficiency. Clin Endocrinol (Oxf). 1992; 37(1):17-27. DOI: 10.1111/j.1365-2265.1992.tb02278.x. View

4.
Schwalfenberg G . Vitamin D and diabetes: improvement of glycemic control with vitamin D3 repletion. Can Fam Physician. 2008; 54(6):864-6. PMC: 2426990. View

5.
Schork N, Fallin D, Lanchbury J . Single nucleotide polymorphisms and the future of genetic epidemiology. Clin Genet. 2000; 58(4):250-64. DOI: 10.1034/j.1399-0004.2000.580402.x. View